Prior to the beginning of the Asgard Arc Sigmund found and saw Polaris Hilda change due to the ring put on her. However, he was put in prison and was unable to get out until after the battle between the Saints and learned of his younger brother's Dubhe Alpha Siegfried death. This caused him to gain a hatred for the Olympian Gods as he knew that the battle was caused by them.
When the Gold Saints were all revived and brought to Asgard, he was wary of allowing Aquarius Camus joined them due to his previous allegiance to Athena, Despite Camus being a friend of Eikþyrnir Surt. Later when Scorpio Milo fought Camus to a standstill he decided to fight Milo himself till Surt revealed he laid a trap and the appearance to Gemini Saga who escaped with Milo.
He later fought Saga again in Yggdrasil in the chamber of mist, Niflheim. During the fight Siegfried's God Robe attached itself to Sigmund to protect him from Saga's Galaxian Explosion. However, afterwards the spirit of his brother appears and tells him to stop fighting, however before he can stop Andreas uses the Odin Sapphire to turn Sigmund into a Berserker, Causing Sigmund to ask Saga to kill him. Saga turn his Cloth into a God Cloth and destroys his God Robe only and leaves the unconscious Sigmund in Niflheim after the destroying the Statue in the chamber.
| God Warriors of Odin|
|Representatives of Odin|
(Gothi and Terrene Agent)
|Drbal • Hilda • Andreas Lise|
|Protectors of Asgard||Frey • Asgardian soldiers|
(Heated Battle of the Gods)
|Heimdall Drbal • Fenrir Loki • Midgardson Midgard • Þrymr Rung • Surtr Ullr|
(Asgard arc, anime-only)
|Dubhe Alpha Siegfried • Merak Beta Hägen • Phecda Gamma Thor • Megrez Delta Alberich • Alioth Epsilon Fenrir • Alcor Zeta Bud • Mizar Zeta Syd • Benetnasch Eta Mime|
(Soul of Gold)
|Gullinbursti Fróði • Níðhöggr Fafner • Tanngrisnir Heracles • Eikþyrnir Surt • Grani Sigmund • Hræsvelgr Baldr • Garmr Útgarðar|
|Affiliates||Freya • Freya • Lyfia|
|Locations||Asgard • Valhalla Palace • Yggdrasill|